TM 9-1767E Ordnance Maintenance: Semitrailer M15, Component of 40-Ton Tank Transporter Trailer Truck M25
"The instructions contained in this manual are for the information and guidance of personnel charged with the maintenance and repair of the Semitrailer MIS which is a component of the 40-ton Tank Transporter Trailer Truck M25 (figs. 1 and 2). This manual does not contain information which is intended primarily for using arms, since such information is available to ordnance maintenance personnel in TM 9-767."
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